Bad breath

Some people claim that experiencing ketosis leaves them with a metallic taste in their mouth and a smell that's sweet, fruity or similar to nail polish remover. This is caused by the chemicals your body produces while it is in ketosis.

Increased ketone levels are to blame for this. Acetone, a ketone that exits through breath and urine, is specifically to blame. Even if this breath might not be the best for your social life, it might be a good indicator of your diet. Many people on ketogenic diets use sugar-free gum or many regular brushes of their teeth to address the problem. Check the label for carbs if you're using gum or other substitutes like sugar-free beverages. These could lower your ketone levels and increase blood sugar.